A5112664753- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser-Matter Interactions and Applications
- Laser Design and Applications
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
- Advanced X-ray Imaging Techniques
- Pain Mechanisms and Treatments
- Ion channel regulation and function
- Building Energy and Comfort Optimization
- High-pressure geophysics and materials
- Energy Harvesting in Wireless Networks
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Surface Polishing Techniques
- Optical Systems and Laser Technology
- Radioactive Decay and Measurement Techniques
- Neuropeptides and Animal Physiology
- Energy Efficiency and Management
- Magnetic confinement fusion research
- Air Quality Monitoring and Forecasting
- Medical Imaging Techniques and Applications
- Pharmacological Receptor Mechanisms and Effects
- Laser Material Processing Techniques
- Thermal Radiation and Cooling Technologies
North China University of Science and Technology
2025
National Engineering Research Center of Electromagnetic Radiation Control Materials
2024
Tsinghua University
2023
Institute of Physics
2002-2014
Chinese Academy of Sciences
2006-2014
National Laboratory for Superconductivity
2008-2014
Shanghai Institute of Applied Physics
2007
University Medical Center
1996-1998
University Hospital and Clinics
1996-1998
Louisiana State University
1996-1998
A novel fast electron beam emitting along the surface of a target irradiated by intense laser pulses is observed. The found to appear only when plasma density scale length small. Numerical simulations reveal that formed due confinement quasistatic electromagnetic fields. results are interest for potential applications beams and deep understanding cone-target physics in ignition related experiments.
Objective: To investigate the role of vitamin E succinate (VES) in inducing autophagy human gastric cancer cells by activating calcium redistribution through inositol 1, 4, 5-trisphosphate receptors (IP(3)R) pathway. Methods: Human lines MKN28 (moderately differentiated) and MKN45 (poorly were cultured vitro March 2022. Gastric treated with VES at different doses for 24 h, cell viability was measured CCK-8 method to determine dose subsequent study. The experiment set up solvent control group...
Filamentation formed by self-focusing of intense laser pulses propagating in air is investigated. It found that the position filamentation can be controlled continuously changing power and divergence angle beam. An analytical model for process given.
When morphine and clonidine are coadministered into the spinal cord (intrathecally) resulting antinociception is greater than would be expected if drug responses were additive; thus, a synergistic interaction. The mechanism for this interaction was investigated using agents which alter calcium channel function G protein function. Drugs administered intrathecally to mice measured tail flick test. L-type antagonists nifedipine (15 micrograms) verapamil N-type antagonist omega-conotoxin GVIA (3...
When coadministered spinally, morphine and clonidine interact synergistically to produce antinociception. The mechanism for the synergism is unknown, but may depend on intracellular messenger systems. Agents that alter activities of protein kinases antinociception produced by opioids, their effects clonidine-induced or morphine/clonidine interaction are not known. In these studies, mice were pretreated intrathecally with inhibitors activators kinase C cyclic AMP-dependent (protein A)....
We propose a novel, to the best of our knowledge, scheme for mid-infrared upconversion imaging with high tunability between bright-field and edge-enhanced modalities. The involved engineering nonlinear process favors shaping optical transfer function system. Consequently, angle-selective filter can be configured perform an all-optical Fourier processing image, which highly depends on phase-matching parameters. numerically demonstrate ability switch modalities by tuning crystal temperature...
This paper reviews the recent studies of filamentation femtosecond lasers pulses in air Institute Physics, Chinese Academy Sciences. The mechanisms free propagated laser pulses, effect turbulence on filamentation, interaction between filaments are presented.
Fast electron emission from the interaction of femtosecond laser pulses with shaped solid targets has been studied. It is found that angular distributions forward fast electrons are highly dependent upon target shapes. The important roles played by electrostatic fields built up at non-laser-irradiated surfaces and collisions in identified. Our two-dimensional particle-in-cell simulations binary included reproduce main experimental observations.
Proton acceleration from 4 μm thick aluminum foils irradiated by 30-TW Ti:sapphire laser pulses is investigated using an angle-resolved proton energy spectrometer. We find that a modulated spectral peak at ∼0.82 MeV presented 2.5° off the target normal direction. The divergence angle of zone 3.8°. Two-dimensional particle-in-cell simulations reveal self-generated toroidal magnetic field rear surface foil responsible for feature. deflects low protons, resulting in spectrum with certain peaks.
In recent years, demand side measures have been increasingly considered to improve the reliability and overall energy efficiency of power systems. Demand response (DR) is an effective method achieve flexible use in building field. Among many DR strategies buildings, global temperature adjustment (GTA) strategy simple effective. However, traditional GTA ignores personnel distribution different spaces during hours, resulting a high reduction thermal comfort building. This study proposes new...
We report the recent theoretical and numerical studies of quasi-monoenergetic electron proton beams in laser solid interactions, where electrons are produce interaction with wire-targets quasi-monoenegetic protons produced by ultra-intense circularly polarized pulses a new acceleration regime called phase-stability acceleration. For generation coherent radiation at high frequencies, attention is paid on emission from plasma waves excited thin target.
We report firstly a homemade femtosecond laser system (XL-III) developed in our institute, which can reach peak power of 355TW. Then some recent results on the fast electron generation and transportation during laser-solid interactions, ion acceleration by collisionless electrostatic shocks waves are introduced briefly.
Bright betatron x-ray has been generated using an Ar clustering gas jet target irradiated with a 3 TW ultra-high contrast laser. The measured emission flux photon energy > 2.4 keV reaches 2\times10^8 photons/shot. It is ten-fold enhancement comparing to the produced by in same laser parameters. Observation shows that much larger electron beam charge and divergence angle lead this improvement. Simulations point existence of cluster results increasing injection wiggling amplitude...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Y. T. Li, X. Lin, C. M. L. Zhou, F. Liu, Du, B. S. J. Wang, Chen, Ma, Z. H. Wei, Sheng, Zhang; Recent Studies of Intense‐Laser‐Driven X‐ray Terahertz Radiation Sources at the Insitute Physics, CAS. AIP Conf. Proc. 16 April 2010; 1228 (1): 334–337. https://doi.org/10.1063/1.3426071 Download citation file: Ris...
The spatial and energy distributions of fast electrons emitted from foil targets irradiated by ultrashort intense laser pulses are measured. Four groups collimated emissions along the front rear target surfaces observed for an incidence angle < 60°. This multi-peak characteristic is found to be independent polarization states. Numerical simulations reveal that electron beams formed due deformation surface then guided induced quasistatic electromagnetic fields.